20178705

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^2\times {\mathrm{2543}}^1$

素因数の和:2597

約数の個数: 24

約数和(自身を含む): 33763968

約数和(自身を除く): 13585263

約数列:

[1, 3, 5, 15, 23, 69, 115, 345, 529, 1587, 2543, 2645, 7629, 7935, 12715, 38145, 58489, 175467, 292445, 877335, 1345247, 4035741, 6726235, 20178705]

約数ペア:

[(1, 20178705), (3, 6726235), (5, 4035741), (15, 1345247), (23, 877335), (69, 292445), (115, 175467), (345, 58489), (529, 38145), (1587, 12715), (2543, 7935), (2645, 7629)]